body * {
    font-family: PingFangSC, helvetica neue, hiragino sans gb, arial, microsoft yahei ui, microsoft yahei, simsun, sans-serif !important;
    box-sizing: border-box;
}

body, button, dd, div, dl, dt, form, h1, h2, h3, h4, h5, h6, hr, input, li, ol, p, td, textarea, th, ul {
    margin: 0;
    padding: 0;
}